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A non-resistance balanced corrugated compensator

A bellows compensator and balanced technology, which is applied to expansion compensation devices for pipelines, pipes/pipe joints/pipes, mechanical equipment, etc. The wave number limitation of the bellows can eliminate the oscillation phenomenon, the tension is uniform and stable, and the structure is simple.

Active Publication Date: 2017-01-11
北京航天凌云波纹管江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the technical solution of this invention patent is that due to the use of internal pressure bellows, in order to prevent instability, the wave number of the working bellows is limited, usually no more than 6 waves; It will have an adverse effect on the stability of the bellows, and this problem will be more prominent when the working bellows have a large amount of expansion and contraction
Therefore, this technical solution is limited in pipelines with large scaling volumes

Method used

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  • A non-resistance balanced corrugated compensator
  • A non-resistance balanced corrugated compensator
  • A non-resistance balanced corrugated compensator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 , image 3 , a non-resistance balanced bellows compensator, comprising a working bellows assembly 10 connected to the main pipeline at both ends, and a balanced bellows assembly 20 vertically connected to the main pipeline.

[0031] The structure of the working bellows assembly and the balance bellows assembly is a structure of an external pressure bellows compensator. The conventional external pressure corrugated compensator is provided with an outer cylinder, and the main pipe is divided into two sections in the external pressure corrugated compensator, one is a long pipe and the other is a connecting pipe. The outer cylinder is sheathed outside the long pipe, one end of the outer cylinder is connected to the end of the connecting pipe, and the other end of the outer cylinder is a free end inserted into the long pipe. The bellows is sleeved between the outer cylinder and the long pipe, one end of the bellows is connected with the end of...

Embodiment 2

[0043] Such as Figure 4 , a non-resistance balanced bellows compensator, comprising a working bellows assembly 10 connected to the main pipeline at both ends, and a balanced bellows assembly 20 vertically connected to the main pipeline.

[0044] This embodiment is another example of the non-resistance balanced corrugated compensator of the first embodiment. In this embodiment, the balance bellows 53 is arranged under the main pipe (long pipe 51), a communication hole 55 is provided at the low point where the long pipe connects with the balance pipe, and a communication hole 55 is provided at the top (i.e., the lowermost end) of the head 24. Excretion port 27 is arranged. Such an arrangement is beneficial to discharge the medium in the main pipeline.

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Abstract

The invention relates to a resistance-free balanced-type ripple compensator. The resistance-free balanced-type ripple compensator comprises a work corrugated pipe assembly with the two ends connected with main pipes and a balanced corrugated pipe assembly perpendicularly connected with the main pipes. Connecting pull ropes are arranged between the work corrugated pipe assembly and the balanced corrugated pipe assembly, the two ends of the connecting pull ropes are connected with the work corrugated pipe assembly and the balanced corrugated pipe assembly respectively, and the connecting pull ropes are bent through a turning fixed pulley. The resistance-free balanced-type ripple compensator has the advantages that tension is transmitted between the work corrugated pipe assembly and the balanced corrugated pipe assembly through the connecting pull ropes, and swinging generated during pulling is eliminated; the multiple pull ropes equal in length are adopted and have same elastic deformation, the pull ropes and the turning fixed pulley are simple in structure and high in reliability, and tension is even and stable. External-pressure type ripper compensator bodies are adopted for the work corrugated pipe assembly and the balanced corrugated pipe assembly, and the instability of a ripple compensator during large expansion is avoided. The resistance-free balanced-type ripple compensator can be suitable for a pipe with large expansion.

Description

technical field [0001] The invention belongs to a pipeline pressure balance compensator, in particular to a non-resistance balanced corrugated compensator. Background technique [0002] For pressure pipes with fixing devices at both ends, the pipe will be deformed due to thermal expansion and contraction, which requires compensator components to be installed in the pipe. When the pipeline is overhead or the equipment at both ends of the pipeline cannot bear a relatively large thrust, it is necessary to install an axial pressure balance bellows compensator. There are two types of axial pressure balance bellows compensator: straight-through type and bypass type. The disadvantage of the straight-through bellows compensator is that the radial dimension is large, and when there are multiple parallel pipes, it takes up a lot of space and is difficult to arrange; at the same time, the internal pressure bellows tends to stretch outward because the bellows are under internal pressur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L51/03
CPCF16L51/03
Inventor 贾建平刘行鹏
Owner 北京航天凌云波纹管江苏有限公司
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